{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["cell line", "protein", "RNA", "cell type", "DNA"], "input": "We report here that interleukin 2 ( IL-2 ) acts on human blood monocytes by enhancing binding activity of the transcription factor NF-kappa B to its consensus sequence in the 5' regulatory enhancer region of the IL-2 receptor alpha chain ( p55 )."}
{"cell line": [], "protein": ["interleukin 2", "IL-2", "transcription factor NF-kappa B", "NF-kappa B", "p55"], "RNA": [], "cell type": ["human blood monocytes", "monocytes"], "DNA": ["5' regulatory enhancer region", "IL-2 receptor alpha chain"]}